# Bose QuietComfort 20
See [usage instructions](https://github.com/jaakkopasanen/AutoEq#usage) for more options and info.

### Parametric EQs
You can use filters 1-5 or 1-10. Apply preamp of -6.0 dB or -6.3 dB, respectively.

|   # | Type      |   Fc (Hz) |    Q |   Gain (dB) |
|-----|-----------|-----------|------|-------------|
|   1 | LowShelf  |       105 | 0.7  |         3.6 |
|   2 | Peaking   |       100 | 0.24 |        -5   |
|   3 | Peaking   |       863 | 1.33 |         7   |
|   4 | Peaking   |      1838 | 2.91 |        -2.3 |
|   5 | Peaking   |      4089 | 5.66 |        -2   |
|   6 | Peaking   |        38 | 3.6  |        -2.2 |
|   7 | Peaking   |        77 | 1.95 |         0.5 |
|   8 | Peaking   |      6597 | 6    |        -6.1 |
|   9 | Peaking   |      8359 | 1.42 |         4.3 |
|  10 | HighShelf |     10000 | 0.7  |         6.2 |

### Fixed Band EQs
When using fixed band (also called graphic) equalizer, apply preamp of **-11.9 dB** (if available) and set gains manually with these parameters.

|   # | Type    |   Fc (Hz) |    Q |   Gain (dB) |
|-----|---------|-----------|------|-------------|
|   1 | Peaking |        31 | 1.41 |         0   |
|   2 | Peaking |        62 | 1.41 |        -1.1 |
|   3 | Peaking |       125 | 1.41 |        -2.9 |
|   4 | Peaking |       250 | 1.41 |        -3.8 |
|   5 | Peaking |       500 | 1.41 |         0.3 |
|   6 | Peaking |      1000 | 1.41 |         6   |
|   7 | Peaking |      2000 | 1.41 |        -2.1 |
|   8 | Peaking |      4000 | 1.41 |        -0.8 |
|   9 | Peaking |      8000 | 1.41 |         3.3 |
|  10 | Peaking |     16000 | 1.41 |        11.8 |

### Graphs
![](./Bose%20QuietComfort%2020.png)
